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From: Christoph Lameter <clameter@sgi.com>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-mm@kvack.org, Andy Whitcroft <apw@shadowen.org>,
	Dave Hansen <haveblue@us.ibm.com>
Subject: Re: [PATCH] Get rid of zone_table V2
Date: Mon, 18 Sep 2006 17:14:20 -0700 (PDT)	[thread overview]
Message-ID: <Pine.LNX.4.64.0609181711210.30365@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20060918165808.c410d1d4.akpm@osdl.org>

i386 code for __inc_zone_page_state which does

void __inc_zone_page_state(struct page *page, enum zone_stat_item item)
{
        __inc_zone_state(page_zone(page), item);
}
EXPORT_SYMBOL(__inc_zone_page_state);

objdump

0000078f <__inc_zone_page_state>:
 78f:   8b 00                   mov    (%eax),%eax
 791:   c1 e8 19                shr    $0x19,%eax
 794:   83 e0 01                and    $0x1,%eax
 797:   69 c0 80 04 00 00       imul   $0x480,%eax,%eax
 79d:   05 00 00 00 00          add    $0x0,%eax
 7a2:   e9 50 fe ff ff          jmp    5f7 <__inc_zone_state>
Disassembly of section .altinstr_replacement:

note no lookup anymore.

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  parent reply	other threads:[~2006-09-19  0:14 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-09-18 19:21 Christoph Lameter
2006-09-18 20:28 ` Andrew Morton
2006-09-18 22:51   ` Christoph Lameter
2006-09-18 23:15     ` Andrew Morton
2006-09-18 23:46       ` Christoph Lameter
2006-09-18 23:58         ` Andrew Morton
2006-09-19  0:08           ` Christoph Lameter
2006-09-19  0:14           ` Christoph Lameter [this message]
2006-09-19  0:31             ` Andrew Morton
2006-09-19  1:20               ` Christoph Lameter
2006-09-19  6:12               ` Christoph Lameter
2006-09-19  6:33                 ` Andrew Morton
2006-09-19 14:10                   ` Christoph Lameter
2006-09-19 15:38                     ` Andrew Morton
2006-09-19 15:41                       ` Christoph Lameter
2006-09-19 16:23                         ` Nick Piggin
2006-09-19 16:45                           ` Nick Piggin
2006-09-19 17:50                             ` Christoph Lameter
2006-09-19 18:24                               ` Andi Kleen
2006-09-19 16:17                       ` Nick Piggin
2006-09-24 10:06 ` Andrew Morton
2006-09-24 16:58   ` Christoph Lameter
2006-09-27  9:19   ` Andrew Morton
2006-09-27  9:26     ` Andy Whitcroft
2006-09-27 11:23     ` [PATCH] zone table removal miss merge Andy Whitcroft
2006-09-27 16:19       ` Christoph Lameter
2006-09-27 11:27     ` [PATCH] Get rid of zone_table V2 Andy Whitcroft
2006-09-27 16:24       ` Andrew Morton
2006-09-30 18:47       ` Christoph Lameter
2006-09-30 18:48         ` Christoph Lameter
2006-09-30 20:08         ` Andrew Morton
2006-10-02 15:57           ` Christoph Lameter
2006-10-02 17:10           ` Christoph Lameter
2006-10-04 10:10             ` Andy Whitcroft
2006-10-06 14:45             ` [PATCH] zoneid fix up calculations for ZONEID_PGSHIFT Andy Whitcroft
2006-10-06 17:00               ` Christoph Lameter

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